Nowadays, the progress in polymer materials and injection molding processing has enabled a drastic expansion of plastic gear applications. They are used not only for lightly loaded motion transmissions, but also in moderately loaded power drives in automotive, agriculture, medical, robotics, and many other industries.

When compared with the traditional gear design approach - based on pre-selected, typically standard generating rack parameters - the alternative Direct Gear Design method provides certain advantages for custom, high-performance gear drives.